hwmon: (w83795) List all usable temperature sources
Temperature sources are not correlated directly with temperature channels. A look-up table is required to find out which temperature sources can be used depending on which temperature channels (both analog and digital) are enabled. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
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@ -178,6 +178,14 @@ static const u8 IN_LSB_SHIFT_IDX[][2] = {
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#define W83795_REG_TSS(index) (0x209 + (index))
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#define W83795_REG_TSS(index) (0x209 + (index))
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#define TSS_MAP_RESERVED 0xff
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static const u8 tss_map[4][6] = {
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{ 0, 1, 2, 3, 4, 5},
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{ 6, 7, 8, 9, 0, 1},
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{10, 11, 12, 13, 2, 3},
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{ 4, 5, 4, 5, TSS_MAP_RESERVED, TSS_MAP_RESERVED},
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};
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#define PWM_OUTPUT 0
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#define PWM_OUTPUT 0
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#define PWM_FREQ 1
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#define PWM_FREQ 1
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#define PWM_START 2
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#define PWM_START 2
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@ -930,6 +938,27 @@ show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
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return sprintf(buf, "%u\n", mode);
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return sprintf(buf, "%u\n", mode);
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}
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}
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/*
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* Check whether a given temperature source can ever be useful.
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* Returns the number of selectable temperature channels which are
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* enabled.
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*/
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static int w83795_tss_useful(const struct w83795_data *data, int tsrc)
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{
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int useful = 0, i;
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for (i = 0; i < 4; i++) {
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if (tss_map[i][tsrc] == TSS_MAP_RESERVED)
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continue;
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if (tss_map[i][tsrc] < 6) /* Analog */
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useful += (data->has_temp >> tss_map[i][tsrc]) & 1;
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else /* Digital */
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useful += (data->has_dts >> (tss_map[i][tsrc] - 6)) & 1;
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}
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return useful;
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}
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static ssize_t
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static ssize_t
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show_temp_src(struct device *dev, struct device_attribute *attr, char *buf)
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show_temp_src(struct device *dev, struct device_attribute *attr, char *buf)
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{
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{
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@ -1608,8 +1637,6 @@ store_sf_setup(struct device *dev, struct device_attribute *attr,
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SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
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SENSOR_ATTR_2(temp##index##_beep, S_IWUSR | S_IRUGO, \
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show_alarm_beep, store_beep, BEEP_ENABLE, \
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show_alarm_beep, store_beep, BEEP_ENABLE, \
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index + (index > 4 ? 11 : 17)), \
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index + (index > 4 ? 11 : 17)), \
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SENSOR_ATTR_2(temp##index##_source_sel, S_IWUSR | S_IRUGO, \
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show_temp_src, store_temp_src, NOT_USED, index - 1), \
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SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \
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SENSOR_ATTR_2(temp##index##_pwm_enable, S_IWUSR | S_IRUGO, \
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show_temp_pwm_enable, store_temp_pwm_enable, \
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show_temp_pwm_enable, store_temp_pwm_enable, \
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TEMP_PWM_ENABLE, index - 1), \
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TEMP_PWM_ENABLE, index - 1), \
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@ -1695,7 +1722,7 @@ static const struct sensor_device_attribute_2 w83795_fan[][4] = {
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SENSOR_ATTR_FAN(14),
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SENSOR_ATTR_FAN(14),
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};
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};
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static const struct sensor_device_attribute_2 w83795_temp[][29] = {
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static const struct sensor_device_attribute_2 w83795_temp[][28] = {
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SENSOR_ATTR_TEMP(1),
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SENSOR_ATTR_TEMP(1),
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SENSOR_ATTR_TEMP(2),
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SENSOR_ATTR_TEMP(2),
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SENSOR_ATTR_TEMP(3),
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SENSOR_ATTR_TEMP(3),
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@ -1726,6 +1753,21 @@ static const struct sensor_device_attribute_2 w83795_pwm[][8] = {
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SENSOR_ATTR_PWM(8),
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SENSOR_ATTR_PWM(8),
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};
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};
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static const struct sensor_device_attribute_2 w83795_tss[6] = {
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SENSOR_ATTR_2(temp1_source_sel, S_IWUSR | S_IRUGO,
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show_temp_src, store_temp_src, NOT_USED, 0),
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SENSOR_ATTR_2(temp2_source_sel, S_IWUSR | S_IRUGO,
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show_temp_src, store_temp_src, NOT_USED, 1),
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SENSOR_ATTR_2(temp3_source_sel, S_IWUSR | S_IRUGO,
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show_temp_src, store_temp_src, NOT_USED, 2),
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SENSOR_ATTR_2(temp4_source_sel, S_IWUSR | S_IRUGO,
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show_temp_src, store_temp_src, NOT_USED, 3),
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SENSOR_ATTR_2(temp5_source_sel, S_IWUSR | S_IRUGO,
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show_temp_src, store_temp_src, NOT_USED, 4),
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SENSOR_ATTR_2(temp6_source_sel, S_IWUSR | S_IRUGO,
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show_temp_src, store_temp_src, NOT_USED, 5),
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};
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static const struct sensor_device_attribute_2 sda_single_files[] = {
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static const struct sensor_device_attribute_2 sda_single_files[] = {
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SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm_beep,
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SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm_beep,
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store_chassis_clear, ALARM_STATUS, 46),
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store_chassis_clear, ALARM_STATUS, 46),
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@ -1890,6 +1932,15 @@ static int w83795_handle_files(struct device *dev, int (*fn)(struct device *,
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}
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}
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}
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}
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for (i = 0; i < ARRAY_SIZE(w83795_tss); i++) {
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j = w83795_tss_useful(data, i);
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if (!j)
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continue;
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err = fn(dev, &w83795_tss[i].dev_attr);
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if (err)
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return err;
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}
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for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
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for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
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err = fn(dev, &sda_single_files[i].dev_attr);
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err = fn(dev, &sda_single_files[i].dev_attr);
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if (err)
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if (err)
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